Add 28/36 and 90/12
1st number: 28/36, 2nd number: 7 6/12
28/36 + 90/12 is 149/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
28/36 = 28 × 1/36 × 1 = 28/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
90/12 = 90 × 3/12 × 3 = 270/36 - Add the two like fractions:
28/36 + 270/36 = 28 + 270/36 = 298/36 - 298/36 simplified gives 149/18
- So, 28/36 + 90/12 = 149/18
In mixed form: 85/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/36+90/12 28/72+90/12 28/36+90/24 84/36+90/12 28/36+90/36 28/36+90/60 28/36+90/84